Liquid-cooled back door with large-angle opening structure

By designing a liquid-cooled back door structure with a large-angle rotation, the problem of the liquid-cooled back panel not being able to be fully opened was solved, enabling convenient maintenance of the server rack and improving maintenance efficiency.

CN224319759UActive Publication Date: 2026-06-02PANSHI HAOHAI (BEIJING) INTELLIGENT TECH CO LTD

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
PANSHI HAOHAI (BEIJING) INTELLIGENT TECH CO LTD
Filing Date
2025-06-13
Publication Date
2026-06-02

AI Technical Summary

Technical Problem

Existing liquid-cooled backplates cannot be fully opened or have a small opening angle, making server rack maintenance difficult.

Method used

A liquid-cooled back door with a large-angle opening structure was designed. The liquid-cooled back door can be rotatably installed on the side of the cabinet through a hinged connecting component. Water inlet and drainage structures and connecting hoses are set to achieve a large-angle rotation opening, exposing the internal space of the cabinet.

Benefits of technology

The interior of the cabinet can be fully exposed without disassembly, facilitating equipment inspection and cabling operations and significantly improving maintenance efficiency.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a liquid cooling back door with big angle opening structure, install the frame fixed mounting in the one side of cabinet, be provided with water inlet structure and drainage structure on the installation side of install the frame, all be provided with connecting hose on water inlet structure and drainage structure, and the liquid cooling back door rotatable installation in the installation side through the hinge connecting component, be provided with the installation structure of installation connecting hose on the hinge connecting component, be provided with multiple sets of cooling pipe on the liquid cooling back door, be provided with liquid inlet shunt spare and backflow collection spare on the liquid cooling back door, and liquid inlet shunt spare and backflow collection spare all are linked together with cooling pipe, and the connecting hose on water inlet structure is linked together with liquid inlet shunt spare, and the connecting hose on drainage structure is linked together with backflow collection spare. The liquid cooling back door with big angle opening structure provided by the utility model, through connecting hose and hinge structure, make the liquid cooling back door realize big angle rotation opening, and it is convenient for maintenance personnel to overhaul the equipment in the cabinet.
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Description

Technical Field

[0001] This utility model relates to the field of liquid cooling technology, and in particular to a liquid-cooled back door with a large-angle opening structure. Background Technology

[0002] With the rapid development of communication and network technologies, the scale and power density of data centers are constantly increasing. Some data center cooling systems use liquid cooling backplates on the front or back of the server racks to cool them.

[0003] Existing liquid-cooled backplanes are generally fixedly installed on server racks. For example, patent application CN219181916U, entitled "Energy-Saving Control Device for Data Center Backplane Liquid Cooling System," includes a base and a mounting backplane. Symmetrically arranged support rods are fixedly connected to the top outer wall of the base, and the top ends of the two support rods are respectively fixedly connected to the bottom outer walls of the mounting backplane. A serpentine cooling pipe is fixedly installed on the inner side of the mounting backplane, and a T-joint is provided on the inner side of the mounting backplane, which is connected to the serpentine cooling pipe. A first opening is opened on one side of the mounting backplane, and a drain pipe is fixedly connected to the inner wall of the first opening. One end of the drain pipe is connected to a first pipe joint, which is connected to the serpentine cooling pipe. A water storage tank is fixedly connected to the top outer wall of the base, and the drain pipe is connected to the water storage tank.

[0004] However, during the operation and maintenance of server racks, when the cables or components on the side of the liquid cooling backplate need to be replaced or repaired, or when the fans on the liquid cooling backplate need to be replaced or repaired, the liquid cooling backplate needs to be opened. Existing liquid cooling backplates generally cannot be opened or have a small opening angle, which causes difficulties in operation and maintenance. Utility Model Content

[0005] The purpose of this invention is to provide a liquid-cooled back door with a large-angle opening structure to overcome the above-mentioned shortcomings in the prior art.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A liquid-cooled back door with a large-angle opening structure includes a mounting frame, which is fixedly installed on one side of a cabinet. The mounting frame forms a doorway for installing the liquid-cooled back door. One side of the mounting frame along the height direction forms a mounting side, on which a water inlet structure and a drainage structure are provided. Both the water inlet and drainage structures are equipped with connecting hoses. The liquid-cooled back door is rotatably installed on the mounting side via a hinged connecting member. The hinged connecting member is equipped with an installation structure for installing the connecting hoses. The liquid-cooled back door is provided with multiple sets of cooling pipes, which are sequentially spaced along the height direction of the liquid-cooled back door. The liquid-cooled back door is provided with a liquid inlet diverter and a return flow collector, both of which are connected to the cooling pipes. The liquid inlet diverter is connected to the connecting hose on the water inlet structure, and the return flow collector is connected to the connecting hose on the drainage structure.

[0008] The liquid-cooled back door with a large opening angle described above includes a water inlet main pipe installed on the mounting frame, which is connected to the liquid supply pipeline.

[0009] The aforementioned liquid-cooled back door with a large-angle opening structure includes a drainage structure comprising a water outlet main pipe installed on the mounting frame, the water outlet main pipe being connected to a return liquid pipe, and both the liquid supply pipe and the return liquid pipe being connected to a cold source system.

[0010] The liquid-cooled back door with a large opening angle described above includes an inlet diversion component comprising an inlet diversion pipe and a return collection component comprising a return water collection pipe, wherein both the inlet diversion pipe and the return water collection pipe are arranged along the height direction of the liquid-cooled back door.

[0011] The aforementioned liquid-cooled back door with a large opening angle is divided into an upper liquid-cooled zone and a lower liquid-cooled zone along the height direction, and both the upper and lower liquid-cooled zones include multiple sets of cooling pipes.

[0012] The aforementioned liquid-cooled back door with a large-angle opening structure also includes a flow guide pipe. The water inlet end of the cooling pipe in the upper liquid-cooled zone is connected to the liquid inlet branch pipe, and the water outlet end of the cooling pipe in the upper liquid-cooled zone is connected to the flow guide pipe.

[0013] In the aforementioned liquid-cooled back door with a large-angle opening structure, the inlet end of the cooling pipe in the lower liquid-cooled zone is connected to the flow guide pipe, and the outlet end of the cooling pipe in the lower liquid-cooled zone is connected to the return water collection pipe.

[0014] The aforementioned liquid-cooled back door with a large opening angle includes a hinge connection component comprising a first hinge seat, a second hinge seat, and a rotating connector. The first hinge seat is fixedly connected to the mounting frame, the second hinge seat is fixedly connected to the liquid-cooled back door, and the second hinge seat is connected to the first hinge seat via the rotating connector.

[0015] The aforementioned liquid-cooled back door with a large-angle opening structure includes a mounting structure comprising a snap-fit ​​component disposed on the first hinge seat, the second hinge seat, and the rotating connector, wherein the snap-fit ​​component is provided with a slot for the connecting hose to be inserted.

[0016] In the above technical solution, the liquid-cooled back door with a large-angle opening structure provided by this utility model has a mounting frame fixedly installed on one side of the cabinet. The mounting side of the mounting frame is provided with a water inlet structure and a drainage structure, both of which are equipped with connecting hoses. The liquid-cooled back door is rotatably installed on the mounting side via a hinged connecting component. The liquid-cooled back door is equipped with multiple sets of cooling pipes, a liquid inlet diverter, and a return collection component. Both the liquid inlet diverter and the return collection component are connected to the cooling pipes. The liquid inlet diverter is connected to the connecting hose on the water inlet structure, and the return collection component is connected to the connecting hose on the drainage structure. Through the design of the connecting hoses, hinged connecting component, and liquid-cooled back door structure, the liquid-cooled back door can be rotated and opened at a large angle, fully exposing the internal space of the cabinet without disassembly. This facilitates maintenance personnel to inspect, replace, or rewire the equipment inside the cabinet, significantly improving maintenance efficiency. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in this utility model. For those skilled in the art, other drawings can be obtained based on these drawings.

[0018] Figure 1 A schematic diagram of the installation of a liquid-cooled back door with a large-angle opening structure provided for an embodiment of this utility model;

[0019] Figure 2 One of the structural schematic diagrams of the hinge connection component provided in the embodiment of this utility model;

[0020] Figure 3 This is the second structural schematic diagram of the hinge connection component provided in the embodiment of this utility model.

[0021] Explanation of reference numerals in the attached figures:

[0022] 1. Cabinet; 11. Mounting frame; 12. Mounting side; 13. Water inlet structure; 131. Water inlet main pipe; 14. Drainage structure; 141. Water outlet main pipe; 15. Connecting hose; 16. Liquid supply line; 17. Liquid return line; 2. Liquid cooling back door; 21. Upper liquid cooling zone; 22. Lower liquid cooling zone; 23. Cooling pipe; 24. Liquid inlet distributor; 25. Return collection component; 26. Flow guide connecting pipe; 3. Hinge connecting component; 31. First hinge seat; 32. Second hinge seat; 33. Rotating connector; 34. Buckle; 35. Slot. Detailed Implementation

[0023] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be further described in detail below with reference to the accompanying drawings.

[0024] like Figure 1-3 As shown, this utility model provides a liquid-cooled back door with a large-angle opening structure, including a mounting frame 11. The mounting frame 11 is fixedly installed on one side of the cabinet 1, forming a doorway for the liquid-cooled back door 2 to be installed. A mounting side 12 is formed on one side of the mounting frame 11 along the height direction. A water inlet structure 13 and a drainage structure 14 are provided on the mounting side 12. Both the water inlet structure 13 and the drainage structure 14 are provided with connecting hoses 15. The liquid-cooled back door 2 is rotatably installed on the mounting side via a hinge connecting member 3. 12. The hinge connection component 3 is provided with an installation structure for installing the connecting hose 15. The liquid-cooled back door 2 is provided with multiple sets of cooling pipes 23. The multiple sets of cooling pipes 23 are arranged at intervals along the height direction of the liquid-cooled back door 2. The liquid-cooled back door 2 is provided with a liquid inlet diverter 24 and a return collection component 25. The liquid inlet diverter 24 and the return collection component 25 are both connected to the cooling pipes 23. The liquid inlet diverter 24 is connected to the connecting hose 15 on the water inlet structure 13. The return collection component 25 is connected to the connecting hose 15 on the drainage structure 14.

[0025] Specifically, the mounting frame 11 is a rectangular metal frame structure. The mounting frame 11 is installed on one side of the cabinet 1. The mounting frame 11 includes a top crossbeam, a bottom crossbeam, and two vertical beams connected to form a rectangular frame, creating a rectangular doorway for the liquid cooling back door 2. The size of the doorway matches the size of the liquid cooling back door 2. When the liquid cooling back door 2 is installed on the cabinet 1, it can close the doorway. One side of the mounting frame 11 along its height direction forms a mounting side 12, i.e., one of the vertical beams of the mounting frame 11 serves as the mounting... The mounting side 12 is provided with a water inlet structure 13 and a drainage structure 14. The water inlet structure 13 and the drainage structure 14 are respectively located at the upper part and the bottom of the mounting side 12. The water inlet structure 13 includes a water inlet main pipe 131 installed on the mounting frame 11. The cold source system is provided with a liquid supply pipe 16 and a liquid return pipe 17. The water inlet main pipe 131 is connected to the liquid supply pipe 16. The drainage structure 14 includes a water outlet main pipe 141 installed on the mounting frame 11. The water outlet main pipe 141 is connected to the liquid return pipe 17.

[0026] In this embodiment, the liquid-cooled back door 2 is provided with multiple sets of cooling pipes 23. These cooling pipes 23 are arranged sequentially at intervals along the height direction of the liquid-cooled back door 2. The cooling pipes 23 can be serpentine pipes or straight pipes connected in sequence. The cooling pipes 23 are evenly distributed to increase the contact area with air and enhance heat dissipation. The cooling pipes 23 are made of copper or aluminum alloy. The liquid-cooled back door 2 is rotatably mounted on the mounting side 12 via hinge connecting members 3. That is, the liquid-cooled back door 2 is rotatably connected to the vertical beam of the mounting frame 11 via hinge connecting members 3. There are multiple hinge connecting members 3, which are arranged sequentially at intervals along the height direction of the liquid-cooled back door 2, allowing the liquid-cooled back door 2 to rotate relative to the mounting frame 11. Thus, the liquid-cooled back door 2 can be rotated to open or close. A lock body that can be locked onto the cabinet 1 can also be provided on the liquid-cooled back door 2; this is prior art and will not be described in detail.

[0027] In this embodiment, a connecting hose 15 is connected to the water inlet main pipe 131 of the water inlet structure 13. The number of connecting hoses 15 can be one, two, or more. The liquid inlet diverter 24 is connected to the connecting hose 15 on the water inlet structure 13. A connecting hose 15 is also provided on the water outlet main pipe 141 of the drainage structure 14. The number of connecting hoses 15 can be one, two, or more. The return collection device 25 is connected to the connecting hose 15 on the drainage structure 14. Thus, the cold source provided by the cold source system can be dispersed and transported to the cooling pipe 23 through the liquid supply pipe 16, the water inlet main pipe 131, the connecting hose 15, and the liquid inlet diverter 24. After heat dissipation treatment, the cold source in the cooling pipe 23 is transported to the return collection device 25, and then sequentially transported to the cold source system through the connecting hose 15, the water outlet main pipe 141, and the return liquid pipe 17. The liquid-cooled back door 2 is a device that uses refrigerant for heat exchange to regulate the temperature of the server rack 1. The types of refrigerants that can be used as refrigerants are well known to those skilled in the art and will not be elaborated upon here.

[0028] The liquid-cooled back door with a large-angle opening structure provided by this utility model has a mounting frame 11 fixedly installed on one side of the cabinet 1. The mounting side 12 of the mounting frame 11 is provided with a water inlet structure 13 and a drainage structure 14. Both the water inlet structure 13 and the drainage structure 14 are provided with connecting hoses 15. The liquid-cooled back door 2 is rotatably installed on the mounting side 12 through a hinge connecting component 3. The liquid-cooled back door 2 is provided with multiple sets of cooling pipes 23. The liquid-cooled back door 2 is provided with a liquid inlet diverter 24 and a return collection component 25. The liquid inlet diverter 24 and the return collection component 25 are both connected to the cooling pipes 23. The liquid inlet diverter 24 is connected to the connecting hose 15 on the water inlet structure 13, and the return collection component 25 is connected to the connecting hose 15 on the drainage structure 14. By connecting the hose 15, hinge connecting component 3, and liquid-cooled back door 2, the liquid-cooled back door 2 can be opened at a large angle, fully exposing the internal space of the cabinet 1 without disassembly. This facilitates maintenance personnel to inspect, replace, or rewire the equipment inside the cabinet 1, greatly improving maintenance efficiency.

[0029] In this embodiment, preferably, the liquid inlet diversion component 24 includes a liquid inlet diversion pipe, which is connected to the connecting hose 15 on the water inlet structure 13. Thus, after the cold source is transported to the liquid inlet diversion pipe through the water inlet structure 13 and the connecting hose 15, it is dispersed and transported into the cooling pipe 23 through the liquid inlet diversion pipe. The return collection component 25 includes a return water collection pipe. Both the liquid inlet diversion pipe and the return water collection pipe are arranged along the height direction of the liquid cooling back door 2. The return collection component 25 is connected to the connecting hose 15 on the drainage structure 14. Thus, after the cold source in the cooling pipe 23 undergoes heat exchange, it flows back to the return water collection pipe and is then transported to the cold source system through the connecting hose 15, the water outlet main pipe 141, and the return liquid pipe 17.

[0030] In this embodiment, preferably, the liquid-cooled back door 2 is divided into an upper liquid-cooled zone 21 and a lower liquid-cooled zone 22 along the height direction. Both the upper liquid-cooled zone 21 and the lower liquid-cooled zone 22 include multiple sets of cooling pipes 23. The water inlet end of the cooling pipe 23 in the upper liquid-cooled zone 21 is connected to the liquid inlet branch pipe, and the water outlet end of the cooling pipe 23 in the upper liquid-cooled zone 21 is connected to the flow guide pipe 26. The water inlet end of the cooling pipe 23 in the lower liquid-cooled zone 22 is connected to the flow guide pipe 26, and the water outlet end of the cooling pipe 23 in the lower liquid-cooled zone 22 is connected to the return water collection pipe.

[0031] In this way, during use, the cold source in the cold source system is transported from the liquid supply pipe 16, the water inlet main pipe 131, and the connecting hose 15 to the liquid inlet branch pipe. It is then distributed to the cooling pipes 23 of the upper liquid cooling zone 21 through the liquid inlet branch pipe. After heat exchange, the cold source in the cooling pipes 23 of the upper liquid cooling zone 21 is transported to the cooling pipes 23 of the lower liquid cooling zone 22 through the guide connecting pipe 26. After heat exchange, the cold source in the cooling pipes 23 of the lower liquid cooling zone 22 is transported to the return water collection pipe, and then sequentially transported to the cold source system through the connecting hose 15, the water outlet main pipe 141, and the return liquid pipe 17, thus forming a cold source circulation system.

[0032] In this embodiment, preferably, the hinge connection component 3 includes a first hinge seat 31, a second hinge seat 32, and a rotating connector 33. The first hinge seat 31 is fixedly connected to the mounting frame 11, and the second hinge seat 32 is fixedly connected to the liquid-cooled back door 2. The second hinge seat 32 is connected to the first hinge seat 31 through the rotating connector 33. The mounting structure includes a buckle 34 provided on the first hinge seat 31, the second hinge seat 32, and the rotating connector 33. The buckle 34 is provided with a slot 35 for the connecting hose 15 to be inserted.

[0033] The first hinge seat 31, the second hinge seat 32, and the rotating connector 33 are all made of high-strength steel to support the weight of the liquid-cooled back door 2. Both the first hinge seat 31 and the second hinge seat 32 have mounting holes for screw installation. Corresponding holes are also pre-set on the mounting frame 11 and the liquid-cooled back door 2. Thus, during use, the first hinge seat 31 can be fixedly mounted on the mounting frame 11 with screws, and the second hinge seat 32 can be fixedly mounted on the liquid-cooled back door 2 with screws, forming a first rotating mounting on the first hinge seat 31. The second hinge seat 32 forms a second rotating mounting foot. The rotating connector 33 includes a rotating connecting piece. One end of the rotating connecting piece is connected to the second hinge seat 32 through a connecting shaft. The other end of the rotating connector 33 can be fixedly mounted on the first hinge seat 31 or can be adjustablely connected to the second hinge seat 32. Thus, the hinged connection component formed by the first hinge seat 31, the second hinge seat 32 and the rotating connector 33 allows the liquid-cooled back door 2 to rotate relative to the mounting frame 11, thereby allowing the liquid-cooled back door 2 to open or close.

[0034] A latching element 34 is integrally provided on the first hinge seat 31, the second hinge seat 32, and the rotating connector 33. The latching element 34 has a U-shaped structure, thus forming a latching groove 35. The opening direction of the latching groove 35 is set as needed, but the direction of the latching groove 35 on the first hinge seat 31, the second hinge seat 32, and the rotating connector 33 is the same, which facilitates the installation of the connecting hose 15. For example, the latching groove 35 on the first hinge seat 31, the second hinge seat 32, and the rotating connector 33 are all set to the upward side, or the latching groove 35 on the first hinge seat 31, the second hinge seat 32, and the rotating connector 33 are all set to the side away from the liquid cooling back door 2.

[0035] The foregoing description only illustrates certain exemplary embodiments of the present invention. Undoubtedly, those skilled in the art can modify the described embodiments in various ways without departing from the spirit and scope of the present invention. Therefore, the above drawings and descriptions are illustrative in nature and should not be construed as limiting the scope of protection of the claims of the present invention.

Claims

1. A liquid-cooled back door with a large-angle opening structure, characterized in that, The system includes a mounting frame, which is fixedly installed on one side of the cabinet. The mounting frame forms a doorway for installing a liquid-cooled back door. One side of the mounting frame along its height forms an installation side, on which a water inlet structure and a drainage structure are provided. Both the water inlet and drainage structures are equipped with connecting hoses. The liquid-cooled back door is rotatably installed on the installation side via a hinged connecting member. The hinged connecting member has an installation structure for installing the connecting hoses. The liquid-cooled back door is equipped with multiple sets of cooling pipes, which are spaced apart sequentially along the height of the liquid-cooled back door. The liquid-cooled back door is equipped with a liquid inlet diverter and a return flow collector, both of which are connected to the cooling pipes. The liquid inlet diverter is connected to the connecting hose on the water inlet structure, and the return flow collector is connected to the connecting hose on the drainage structure.

2. The liquid-cooled back door with a large-angle opening structure according to claim 1, characterized in that, The water inlet structure includes a water inlet main pipe disposed on the mounting frame, and the water inlet main pipe is connected to the liquid supply pipeline.

3. The liquid-cooled back door with a large-angle opening structure according to claim 2, characterized in that, The drainage structure includes a water outlet main pipe installed on the mounting frame, which is connected to a return liquid pipe. Both the liquid supply pipe and the return liquid pipe are connected to a cold source system.

4. The liquid-cooled back door with a large-angle opening structure according to claim 1, characterized in that, The liquid inlet diversion component includes a liquid inlet diversion pipe, and the return collection component includes a return water collection pipe. Both the liquid inlet diversion pipe and the return water collection pipe are arranged along the height direction of the liquid-cooled back door.

5. The liquid-cooled back door with a large-angle opening structure according to claim 4, characterized in that, The liquid-cooled back door is divided into an upper liquid-cooled zone and a lower liquid-cooled zone along the height direction, and both the upper and lower liquid-cooled zones include multiple sets of cooling pipes.

6. The liquid-cooled back door with a large-angle opening structure according to claim 5, characterized in that, It also includes a flow guide pipe, wherein the water inlet end of the cooling pipe in the upper liquid cooling zone is connected to the liquid inlet branch pipe, and the water outlet end of the cooling pipe in the upper liquid cooling zone is connected to the flow guide pipe.

7. The liquid-cooled back door with a large-angle opening structure according to claim 6, characterized in that, The inlet end of the cooling pipe in the lower liquid cooling zone is connected to the flow guide pipe, and the outlet end of the cooling pipe in the lower liquid cooling zone is connected to the return water collection pipe.

8. The liquid-cooled back door with a large-angle opening structure according to claim 1, characterized in that, The hinge connection component includes a first hinge seat, a second hinge seat, and a rotating connector. The first hinge seat is fixedly connected to the mounting frame, the second hinge seat is fixedly connected to the liquid-cooled back door, and the second hinge seat is connected to the first hinge seat through the rotating connector.

9. The liquid-cooled back door with a large-angle opening structure according to claim 8, characterized in that, The installation structure includes a snap-fit ​​component disposed on the first hinge seat, the second hinge seat, and the rotating connector, wherein the snap-fit ​​component is provided with a slot for the connecting hose to be inserted.